How to configure Fiori Launchpad for Personas with different servers

I'm trying to build examples of using Slipstream Engine from the SAP Fiori Launchpad App on a mobile phone and an Ipad. You explain how to configure the Launchpad in several places but apparently always when it is installed on the back-end server with SAP Screen Personas. - https://help.sap.com/viewer/b6a24c359e2142e3a86ff405f43ba282/3.0.6/en-US/fe74ef30b6174b16ab0af2d5f507e3b1.html- Open SAP Course SAP Screen Personas Advanced Scenarios. Do you have a guide that explains exactly how to create semantic objects and how to manage LPD_CUST (if necessary) if SAP Screen Personas and SAP Fiori Launchpad are running on different servers ?

I was working before with the false System Alias Type from SM59. I've defined a new Remote System Type(H) HTTP in SM59 in the Front-End Server. In the FLP Designer my semantic object type URL is using this new System Alias. The FLP call correctly now the back-end server. It's the 'Alternative approach (for older SAP_UI versions)' described from your link in the chapter 'Create a target mapping for Slipstream Engine'.

But with the recommended approach SAPUI5 (requires SAP_UI 7.51), I always don't understand where is the back-end server defined.